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NOV; 1930. s. HALVORSEN Re; 17,361

PNEUMATIC FEED MECHANI SM Ori inal Filed Dec. 22, 1924 s Sheets-Sheet 19 s. HALvoisEN Re. 17,861

PNEUMATIC FEED MECHANISM Original Filed Dec. 22, 1924 6 Sheets-Sheet 2fleverzkg aiams'eiz a, a.m7a%q Nov. 11, 1930. s. HALVORSEN PNEUMATICFEED MECHANISM Original Filed Dec. 22, 1924 6 Sheets-Sheet 5 $6 n6 an 3Nov. 11, 1930; ,s. HALVORSEN 17,361

PNEUMATIC FEED MECHANISM Original Filed Dec. 22, 1924 6 Sheets-Sheet 4 ll I I I I I I 4 I I l I Nov. 11, 1930. s. HALVORSEN PNEUMATIC FEEDMECHANISM Original Filed Dc.

22, 1924 6 Sheets-Sheet 5 Nov. 11, 1930. s. HALVORSEN PNEUMATIC FEEDMECHANISM 6 Sheets-Sheet 6 Original Filed Dec. 22, 1924 Z 7 Km iReissued Nov. 11, 1930 UNITED STATES PATENT OFFICE SEVERIN HALVORSEN, OFCHICAGO, ILLINOIS, ASSIGNOR TO THE NEWSPAPER STUFF- ING MACHINE COMPANY,OF SEATTLE, WASHINGTON, A CORPORATION OF WASH- INGTON PNEUMATIC FEEDMECHANISM Original No. 1,676,897, dated July 10, 1928, Serial No.757,340, filed December 22, 1924. Application for reissue filed December18,

My invention relates to pneumatic feed mechanisms for feeding papers orlike articles from the end of a stack or pile.

The objects of the invention are to provide an improved construction ofpneumatic feed mechanism of the class specified; to secure rapidity andefliciency in operation; to increase feeding efliciency by relieving theendmost article which is to be fed, from pressure from the weight ofother articles; to secure efi'ective action with certain types of papers01' articles which have not heretofore been effectively fed; to provideadvantageous means for holding the articles in proper position forfeeding and for releasing them at the proper time; to arrange forfeeding the papers or articles when mounted in vertical position; toarrange for the effective advancement of the bottoms of the articleswhen mounted in vertical position; to permit effective feeding of thetops of the same when in such position; and to secure the foregoing andother desirable results in a simple and expeditious manner.

In the accompanying drawings Fig. 1 is a front view of a pneumaticfeeding mechanism embodying my present invention;

Fig. 2 is a. plan view of the same;

Fig. 3 is a View of the right hand end of the machine;

Fig. 4 is a view of the left hand end; and

Figs. 5 and 6 are cross sections taken on lines 5 and 66 respectively,in Fig. 1.

Referring to the drawings, 1 show a series of papers or other articlesA-A, arranged side by side vertically so as to make a substantiallyhorizontally extending pile. Where the articles are newspaper sections,the folded edges thereof are preferably uppermost and the cut edgeslowermost, as shown 1n Fig. 6. A supporting plate 1 is provided for theendmost articles or papers which are, to be fed, and an upright plate 2is provided for supporting the endmostartwle and so supporting the stackor pile against falling. Fingers 3 are arranged at the top of the stackor pile so as to engage and hold the upper folded edges of the papers.These fingers are actuated intermittently so as to release the endmostpaper, this being done by mount- 1929. Serial No. 415,110.

ing the fingers on the rotary shaft 4 which is rocked byflink 5pivotally connected at 6 to arm 7 on said shaft, and also pivotallyconnected at 8 to rocker arm 9, pivoted at 10 and carrying roller 11which is actuated by cam 12 on rotary shaft 13.

v The papers or articles are advanced forwardly as they are fed by meansof a feed or advancing chain. 14 supporting the lower unfolded edges ofsaid articles and travelling over sprocket wheels 15 and 16 on shafts 17and 18, respectively, shaft 17 being driven by sprocket arrangementcomprising sprocket wheel 19 on shaft 17 and pawl 20 on swinging arm 21which is reciprocated by link 22 actuated by cam 23 on main drive shaft24. I

The upper portions of the papers or articles being fed are advanced by aplate 26 slidably mounted on a rod 27, a flexible connector or cord 28being attached to the slide 29 carrying said member 26 and a weight 30being attached to the end of the flexible connector 28, which latter ispassed over pulley 31 so that the weight 30 tends constantly to pullupon flexible connector 28 and thus push the upper ends of the articlesforward.

The endmost article or paper after being released by fingers 3 isengaged and pulled forwardly and downwardly by pneumatic pulling devicesor suckers 32 carried by a rotary tubular member 33, which is mountedfor vertical reciprocation on a sliding carriage 34, which in turn ismounted at the upper end of a v slidable rod or bar 35 moving inbearings 36. Rod 35 is actuated to reciprocate suckers 32 by swingingarm 37 carried by oscillatory shaft 40, which latter is rocked so as toswing member 37 by pinion 39 on shaft 40 and rack 41 engaging pinion 39.Rack 41 is reciprouated by cam 43 mounted on shaft 24 and engagingrollers 44 and 45 on link 46 carrying rack 41.

Suckers 32 are swung forwardly and downwardly when their slidingcarriage 34 is moved downwardly by means of pinion 48 on tubular member33, said pinion engaging stationary rack 49. This downward and forwardmt Yement of suckers 32 pulls released is further downwardly andforwardly and is then gripped between segment 51 and gripping roll 54,which latteris drivenby gear 55 on shaft 13 and pinion 56 on roll,zshakft 57. .The gripped paper is.by this.means tween guides 60 and 61and between delivery withdrawn entirely from;p1le. or [stack of papersand then is moved downwardly beor exit rolls 62 and '63. Ihe latter aredriven .by gear 64, which is driven by pinion 56 and gear fil'drivespinion 65 on roll shaft "66,- and pinion'65 drives pinion 67'onroll shaft 68. Roll shaft68 is mounted inadjustable b'earing69controlled by spring 70, making roll '63 adjustable to accommodatedifferent thicknesses of paper. To hold upper edges of paper steady inthe'pile or stack, pins or'stabbing devices 72 are provided'to nstab orengage the upper folded edges of the papers at proper times.

are reciprocated to engage and disengagethe paper edges, thereciprocation being p'refa for reciprocating-said suckers vertically,and

These devices '72 erably in a vertical manner as by mounting them on thevertically reciprocating rods 73 having pivotal connectionsfat 74 withswinging arms 75 on rock shaft 76, which 7 -35 latter is rocked by arm77 pivotally connected "with link 78 earring roller -79 andhaving forkedend 80 straddling shaft 13, which l'a'tter is provided with cam 81acting on roller 79-to reciprocate link'78 upwardly anddownwa'rdly, andthereby vertically reciprocate pinjholding devices 7 2.

Tubular member 33 carrying suckers-32 is mounted for reciprocating inbearings 85,

' one of which carries a pipe 86 sliding-in a "pipe, section 87extending to valve block 88 having ports controlled by rotary valve" 89actuated by link 90, which is in turn actuated by rocker'arin 91 pivotedat 92 and carrying removed because it is not necessary for it to bearthe weight of the'articles above it, as. would be the case in a verticalpile with the roller 93 acted on by cam 94 011 rotary. cam

shaft 13. By this arrangement suction for the suckers '32 is controlledso-that there is suction to engage and pull down endmost paperat propertime, but no suction when or articles in a substantially vertical posi--ly, and for swinging the same outwardly tion, the endmost article canbe very readily articles horizontal." This permits feeding of articlesof some kinds which couldnot' be fed properly in the vertical ile. IFurthermore, pressure may be exerte onthese vercooperating with the suc,tically arranged articles so as to feed them This further simplifiesfeeding and makes itmore eflicient-and effective. It will also appearthat the articles may be effectively held both by the swinging fingers]and the .reciprocatingstabbing or engaging pins, and

consequently any tendency of the articles to fall, or' fiop downwardlywill be overcome and feedingwill thus be stabilized in this respect. Itwill also be seen that the mechanism for engaging and pulling down theendmost article, is effective and 'eflicient, so that altogether a highdegree of efficiency and great speed of action may besecured.

"It will be understoodthatchanges and modifications may be made withoutdepartingfrom the spirit of the invention.

What I claim is:

Feeding mechanism in whichzthe articles are arranged invertical-position, said feed- -x lng mechanism having means acting upon"the articles to advance "them-in a substantially horizontal manner andfeeding devices comprising suckers for engaging and pulling out theupper edge of the foremost article,.means for swinging the sameoutwardly when moved downwardly, a rotary segmenttcooperating with thesuckers and a gripping roll cooperating with saidrotary segment.

2. "Feeding mechanism inwhich the articles are arrangedin'verticalposition, said feeding mechanism: having means actingupon-the articles to advance them: in a substantially horizontalmannerandgfeedingzdevices com- PIISlllg suckers'for engaging and pulling outthe upper edge of the foremost article, means for reciprocating saidsuckersvertically, and for swinging the same outwardly .when

moved downwardly, a rotary segment corn:

operating-withthe suckers,- a grippingroll cooperating with said rotarysegment,.and

holding-fingers for engaging the upper edges of the articles.

'3. Feeding'mechanism in which the articles-1a ingjmechanism havingmeans. I acting upon the articles to advance them in a substantiallyhorizontal manner and feeding devices 7 comprisingsuckers' for engagingand pulling out the upper edge of the foremost article, meansforreciprocating said suckers verticalwhen moved downwardlly, a rotarysegment cooperating with said rotary segment, and holding fingers forengaging the upper edges ers, agripping roll 4. Feeding mechanism inwhich the articles are arranged in vertical positlon, said feedingmechanism having means acting upon 1 the articles to advance them in asubstantially horizontal manner and feedin devices comprising suckersfor engaging an pulling out the upper edge of the foremost article,means for reciprocating said suckers vertically, and for swinging thesame outwardly when moved downwardl a rotary segment cooperating withthe suc ers, a gripping roll cooperating with said rotary segment,holding fingers for engaging the upper edges of the articles, andstabbing devices for cooperating with said fingers to hold the articlesin position and mechanism for actuating said holding fingers andstabbing devices.

5. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the artlclesto advance them in a substantially horizontal manner and feeding devicescomprising suckers for en aging and pulling out the upper edge of theoremost article, means for reciprocating said suckers vertically, andfor swinging the same outwardly when moved downwardly, a rotary segmentcooperating with the suckers, a gripping roll cooperating with saidrotary segment, and means for controlling the suction to said suckers.

6. Feeding mechanism in which the articles are arranged in verticalposition, said feeding mechanism having means acting upon the articlesto advance them in a substantially horizontal manner and feeding devicescomprising suckers for engaging and pulling out the upper edge of theforemost article, means for reciprocating said suckers vertically, andfor swinging the same outwardly when moved downwardly, a rotary segmentcooperating with the suckers, a gripping roll cooperating with saidrotary segment, and means for controlling the suction to said suckers,said means comprising valve mechanism and a cam and link arrangement foractuating the same.

7. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same.

8. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same, said engaging devicescomprising pins adapted for insertion into the upper edges of thearticles.

9. Feeding mechanism in which the articles are arranged verticallyhaving engaging devices mounted above the endmost articles and arrangedfor vertical reciprocation to and from the same, said engaging devicescomprising pins adapted for insertion into SEVERIN HALVORVSEN.

